Maps and GPS directions to Apple King of Prussia and other Apple Stores in the United States. Find your nearest Apple Stores. Apple ignited the personal computer revolution in the 1970s with the Apple II and reinvented the personal computer in the 1980s with the Macintosh. Today, Apple continues to lead the industry in innovation with its award-winning desktop and notebook computers, OS X operating system, and iLife and professional applications. Apple is also spearheading the digital music revolution with its Apple iPhone, iPod portable music players and iTunes online music store.